Vibration Reduction of Damping Rings on 3D Nonlinear Multi-loaded Slender Beams
學年 108
學期 1
出版（發表）日期 2019-08-01
作品名稱 Vibration Reduction of Damping Rings on 3D Nonlinear Multi-loaded Slender Beams
作品名稱（其他語言）
著者 Yi-Ren Wang; Wan-Chi Hsiao
單位
出版者
著錄名稱、卷期、頁數 Journal of Chinese Society of Mechanical Engineers, Vol. 40, No.4, pp. 327-339.
摘要 This study examines the damping effects of two damping rings (DRs) applied on an offshore wind-turbine tower (a slender beam) subject to multiple external forces. The wind-turbine tower is simulated by a 3D nonlinear fixed-free elastic beam with a concentrated load applied on the beam tip. The multiple external forces include windward drag force, transverse induced force, the current force under the ocean surface, and the concentrated time-dependent load applied by the turbine on the free end of the tower. The Mindlin-Goodman method is applied to obtain the mode shape function of this beam. The method of multiple scales (MOMS) is employed to analyze the nonlinear problem. An 1:1 internal resonance was observed in this 3D elastic beam. The results indicate that in addition to placing one of the DRs at the maximum amplitude of the beam mode shape, adding the other set of DRs at the ocean currents and aerodynamic forces joint will produce better damping effects.
關鍵字 Nonlinear beam;Internal resonance;Vibration reduction;Aeroelasticity
語言 en_US
ISSN
期刊性質 國外
收錄於 SCI EI
產學合作
通訊作者 Y.-R. Wang
審稿制度 是
國別 TWN
公開徵稿
出版型式 ,電子版,紙本
相關連結

機構典藏連結 ( http://tkuir.lib.tku.edu.tw:8080/dspace/handle/987654321/117156 )